Thanks Graham, but the early +8s aren't quite like that. The fuse for the horns and radiator fan (through a relay) is fed from the ammeter. Two other fuses are fed from the ignition switch, and the fourth between the lighting switch and the connected lights and spotlights. The pre-engaged starter solenoid (mounted on the starter) has the battery +ve connected directly to it and also 4 other brown wires going round the car. So a single power fuse will not work without a major rewire.
Arwyn - yes, four glass fuses and two spares, but I doubt all all 25 A.
